本指南仅提供成就解锁方法，剧透成分已降至最低，请放心食用~ 

还愿. 

整理出全部的觀察點，方便玩家完成全部的成就。 裡面還附了一些簡易攻略，主要是針對比較容易有問題的部分，像是鋼琴，還有第4章的對話選擇。  

仅供查漏补缺。 

This guide aims to help with getting all achievements of Detention easily, considering you've completed or have played the game before and know the general locations/areas of the levels. Nonetheless, I'll keep this guide simple and straight to the point. W...