When I Woke Up, the Sky Was Falling, and the School Beauty's Wife Was Six Years Older.

I woke up and traveled through time, no big problem! But why wear it to bed? Why is there a woman who exudes mature charm lying next to him? And why is she dressed so cool? …What, she is my wife? We also have a seven-year-old daughter? Wait... Isn't this wife my nemesis in college? And... Why does our house have a basement. Why is it filled with my photos? ... Finally, can I ask a weak question about what these "torture tools" are for?