I Reincarnated as the Strongest Character I Raised, So I’ve Decided to Punch Anyone Who Gets in My Way

Up until now, the protagonist had lived a life of being looked down on, mocked, and berated by his parents, his younger brother, and even his fiancee. Then one day, he realizes that he has reincarnated as the game character (avatar) from a game he played in his previous life and raised with great care. Naturally, the character I raised in that game now possesses stats capable of easily defeating even a dragon in this world, and so he makes up his mind: anyone who stands in his way will be punched without question (resolved through force).