After Raising His Apprentice and Killing Him with His Own Hands,

[Two male protagonists, time travel] (´･_･`) The Ultimate Guide to Preventing Pitfalls: ✦ Complete on the surface｜Unfinished in reality ✦ Logic is dead | Don't burn paper money ✦ The plot is sparse | Be careful to get stuck ❤️ Friendly reminder: It's not too late to close the page now