++++++++++++++++++++++
1. The male protagonist is Nissan, BG is fine.
2. The heroine has definitely traveled through time.
3. The heroine is related to the war against the foreigners, and the four of them form friends
4. It may involve some three-dimensional friends
5. Then briefly soothe
6. Well, the characters are actually completely broken
So use with caution.
Ahem, so don't click in carelessly!