What Did I Do in the Collapsing World Before I Lost My Memory?

When he woke up, Chu Xiu found himself in another world. Well, it shouldn't be a parallel world. This world had a so-called collapse crisis, but it seemed that under the influence of many forces, it was driven to the moon to restrict it. After Chu Xiu came to this world, he quickly discovered that there was something "different" between his previous self and his current self, especially his previous self had some special habits. However, there may be some problems with time travel and he lost about 4 years of memory, but his body's instinct told him that there was no big problem. It wasn't until he adapted to life here that an accident happened. "Miss Xier, this is the first time we have met, can you please stop looking at me with that weird look?" "Miss Mei, as an S-class Valkyrie, it's not appropriate for you to hug me." "Ms. Bronya, we can have a good chat, and can you let the heavy-duty bunny put me down first?" "Aside from these women, why are the Tree of Imaginary Numbers, the Sea of ​​Quantum, and the Honkai Consciousness also targeting me!" So what did I do in the past! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.