diff --git a/Samurai/Components/ApiManager.cs b/Samurai/Components/ApiManager.cs
index 1a222a8..cfa341e 100644
--- a/Samurai/Components/ApiManager.cs
+++ b/Samurai/Components/ApiManager.cs
@@ -1,18 +1,15 @@
-using System;
 using System.Collections.Generic;
-using System.Net.Http;
 using System.Threading.Tasks;
+using AcidChicken.Samurai.Models;
 using Newtonsoft.Json;
 
 namespace AcidChicken.Samurai.Components
 {
-    using static Program;
-    using Models;
     public static class ApiManager
     {
         public static async Task<Ticker> GetTickerAsync(string id, string convert = null)
         {
-            using (var request = await HttpClient.GetAsync($"https://api.coinmarketcap.com/v1/ticker/{id}/{(string.IsNullOrEmpty(convert) ? "" : $"?convert={convert}")}").ConfigureAwait(false))
+            using (var request = await Program.HttpClient.GetAsync($"https://api.coinmarketcap.com/v1/ticker/{id}/{(string.IsNullOrEmpty(convert) ? "" : $"?convert={convert}")}").ConfigureAwait(false))
             using (var response = request.Content)
             {
                 return JsonConvert.DeserializeObject<Ticker[]>(await response.ReadAsStringAsync().ConfigureAwait(false))[0];
@@ -21,7 +18,7 @@ public static async Task<Ticker> GetTickerAsync(string id, string convert = null
 
         public static async Task<Dictionary<string, string>> GetTickerAsDictionaryAsync(string id, string convert = null)
         {
-            using (var request = await HttpClient.GetAsync($"https://api.coinmarketcap.com/v1/ticker/{id}/{(string.IsNullOrEmpty(convert) ? "" : $"?convert={convert}")}").ConfigureAwait(false))
+            using (var request = await Program.HttpClient.GetAsync($"https://api.coinmarketcap.com/v1/ticker/{id}/{(string.IsNullOrEmpty(convert) ? "" : $"?convert={convert}")}").ConfigureAwait(false))
             using (var response = request.Content)
             {
                 return JsonConvert.DeserializeObject<Dictionary<string, string>[]>(await response.ReadAsStringAsync().ConfigureAwait(false))[0];
@@ -30,7 +27,7 @@ public static async Task<Dictionary<string, string>> GetTickerAsDictionaryAsync(
 
         public static async Task<Ticker[]> GetTickersAsync(string convert = null)
         {
-            using (var request = await HttpClient.GetAsync($"https://api.coinmarketcap.com/v1/ticker/?limit=0{(string.IsNullOrEmpty(convert) ? "" : $"&convert={convert}")}").ConfigureAwait(false))
+            using (var request = await Program.HttpClient.GetAsync($"https://api.coinmarketcap.com/v1/ticker/?limit=0{(string.IsNullOrEmpty(convert) ? "" : $"&convert={convert}")}").ConfigureAwait(false))
             using (var response = request.Content)
             {
                 return JsonConvert.DeserializeObject<Ticker[]>(await response.ReadAsStringAsync().ConfigureAwait(false));
@@ -39,7 +36,7 @@ public static async Task<Ticker[]> GetTickersAsync(string convert = null)
 
         public static async Task<Dictionary<string, string>[]> GetTickersAsDictionaryAsync(string convert = null)
         {
-            using (var request = await HttpClient.GetAsync($"https://api.coinmarketcap.com/v1/ticker/?limit=0{(string.IsNullOrEmpty(convert) ? "" : $"&convert={convert}")}").ConfigureAwait(false))
+            using (var request = await Program.HttpClient.GetAsync($"https://api.coinmarketcap.com/v1/ticker/?limit=0{(string.IsNullOrEmpty(convert) ? "" : $"&convert={convert}")}").ConfigureAwait(false))
             using (var response = request.Content)
             {
                 return JsonConvert.DeserializeObject<Dictionary<string, string>[]>(await response.ReadAsStringAsync().ConfigureAwait(false));
diff --git a/Samurai/Models/RpcResponse.cs b/Samurai/Models/RpcResponse.cs
index 191fd95..f1fdd9f 100644
--- a/Samurai/Models/RpcResponse.cs
+++ b/Samurai/Models/RpcResponse.cs
@@ -1,6 +1,4 @@
-using System;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace AcidChicken.Samurai.Models
 {
diff --git a/Samurai/Models/Ticker.cs b/Samurai/Models/Ticker.cs
index 2f78c15..37dfefd 100644
--- a/Samurai/Models/Ticker.cs
+++ b/Samurai/Models/Ticker.cs
@@ -1,10 +1,7 @@
-using System;
 using Newtonsoft.Json;
 
 namespace AcidChicken.Samurai.Models
 {
-    using Tasks;
-
     [JsonObject]
     public class Ticker
     {
diff --git a/Samurai/Modules/CommonModule.cs b/Samurai/Modules/CommonModule.cs
index 9e7f12a..99ee2aa 100644
--- a/Samurai/Modules/CommonModule.cs
+++ b/Samurai/Modules/CommonModule.cs
@@ -4,16 +4,14 @@
 using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
+using AcidChicken.Samurai.Assets;
+using AcidChicken.Samurai.Components;
 using Discord;
 using Discord.Commands;
 
 namespace AcidChicken.Samurai.Modules
 {
     using static Program;
-    using Assets;
-    using Components;
-    using Models;
-    using Tasks;
 
     [Group(""), Summary("汎用モジュールです。")]
     public class CommonModule : ModuleBase
diff --git a/Samurai/Modules/ConversionModule.cs b/Samurai/Modules/ConversionModule.cs
index 1ab6673..72ac28d 100644
--- a/Samurai/Modules/ConversionModule.cs
+++ b/Samurai/Modules/ConversionModule.cs
@@ -1,15 +1,12 @@
-using System;
 using System.Linq;
 using System.Threading.Tasks;
+using AcidChicken.Samurai.Assets;
+using AcidChicken.Samurai.Components;
 using Discord;
 using Discord.Commands;
 
 namespace AcidChicken.Samurai.Modules
 {
-    using static Program;
-    using Assets;
-    using Components;
-
     [Group("conversion"), Summary("通貨換算モジュールです。"), Alias("conv", "c")]
     public class ConversionModule : ModuleBase
     {
diff --git a/Samurai/Modules/ModuleManager.cs b/Samurai/Modules/ModuleManager.cs
index cbebb7b..84537cf 100644
--- a/Samurai/Modules/ModuleManager.cs
+++ b/Samurai/Modules/ModuleManager.cs
@@ -1,8 +1,9 @@
-using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 using System.Threading.Tasks;
+using AcidChicken.Samurai.Assets;
+using AcidChicken.Samurai.Components;
 using Discord;
 using Discord.Commands;
 using Discord.WebSocket;
@@ -10,8 +11,6 @@
 namespace AcidChicken.Samurai.Modules
 {
     using static Program;
-    using Assets;
-    using Components;
 
     public static class ModuleManager
     {
diff --git a/Samurai/Modules/TippingModule.cs b/Samurai/Modules/TippingModule.cs
index 383571b..03299ee 100644
--- a/Samurai/Modules/TippingModule.cs
+++ b/Samurai/Modules/TippingModule.cs
@@ -1,20 +1,16 @@
 using System;
-using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using AcidChicken.Samurai.Assets;
+using AcidChicken.Samurai.Components;
+using AcidChicken.Samurai.Models;
+using AcidChicken.Samurai.Tasks;
 using Discord;
 using Discord.Commands;
-using Discord.Net;
-using LiteDB;
-using Newtonsoft.Json;
 
 namespace AcidChicken.Samurai.Modules
 {
     using static Program;
-    using Assets;
-    using Components;
-    using Models;
-    using Tasks;
 
     [Group(""), Summary("投げ銭モジュールです。")]
     public class TippingModule : ModuleBase
@@ -88,7 +84,7 @@ public async Task RainAsync([Summary("金額")] decimal totalAmount = decimal.Mi
         {
             if (totalAmount == decimal.MinusOne)
             {
-                totalAmount = (decimal)Math.Pow(10, Random.NextDouble()) - 1;
+                totalAmount = (decimal)Math.Pow(10, Program.Random.NextDouble()) - 1;
             }
             var targets = await TippingManager.GetUsersAsync(Context.Channel, Context.User, 10).ConfigureAwait(false);
             if (targets.Any())
diff --git a/Samurai/Program.cs b/Samurai/Program.cs
index 366c555..335dfc0 100644
--- a/Samurai/Program.cs
+++ b/Samurai/Program.cs
@@ -1,10 +1,11 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
-using System.Linq;
 using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
+using AcidChicken.Samurai.Models;
+using AcidChicken.Samurai.Modules;
+using AcidChicken.Samurai.Tasks;
 using Discord;
 using Discord.WebSocket;
 using LiteDB;
@@ -12,11 +13,6 @@
 
 namespace AcidChicken.Samurai
 {
-    using Components;
-    using Models;
-    using Modules;
-    using Tasks;
-
     public static class Program
     {
         public const string ConfigurePath = "config.json";
diff --git a/Samurai/Samurai.csproj b/Samurai/Samurai.csproj
index da98ce8..89309af 100644
--- a/Samurai/Samurai.csproj
+++ b/Samurai/Samurai.csproj
@@ -1,5 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp2.0</TargetFramework>
@@ -14,11 +13,9 @@
     <PackageIconUrl>https://raw.githubusercontent.com/acid-chicken/Samurai/master/Assets/Samurai.png</PackageIconUrl>
     <RepositoryUrl>https://github.com/acid-chicken/Samurai.git</RepositoryUrl>
   </PropertyGroup>
-
   <ItemGroup>
     <PackageReference Include="System.Net.Ping" Version="4.3.0" />
     <PackageReference Include="Discord.Net" Version="1.0.2" />
     <PackageReference Include="LiteDB" Version="4.1.0" />
   </ItemGroup>
-
-</Project>
+</Project>
\ No newline at end of file
diff --git a/Samurai/Tasks/TickerManager.cs b/Samurai/Tasks/TickerManager.cs
index 91ef05a..a02a329 100644
--- a/Samurai/Tasks/TickerManager.cs
+++ b/Samurai/Tasks/TickerManager.cs
@@ -1,15 +1,13 @@
 using System;
-using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
+using AcidChicken.Samurai.Components;
+using AcidChicken.Samurai.Models;
 using Discord;
-using Newtonsoft.Json;
 
 namespace AcidChicken.Samurai.Tasks
 {
     using static Program;
-    using Components;
-    using Models;
 
     public static class TickerManager
     {
diff --git a/Samurai/Tasks/TippingManager.cs b/Samurai/Tasks/TippingManager.cs
index f195cdd..a9c0328 100644
--- a/Samurai/Tasks/TippingManager.cs
+++ b/Samurai/Tasks/TippingManager.cs
@@ -2,22 +2,16 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
-using System.Net;
-using System.Net.Http;
-using System.Net.Http.Headers;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
+using AcidChicken.Samurai.Models;
 using Discord;
 using LiteDB;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace AcidChicken.Samurai.Tasks
 {
     using static Program;
-    using Components;
-    using Models;
 
     public static class TippingManager
     {