man, 3 stories in 1, even the short story in the end got me.
One thing though, Katsura really like the chad best friend trope.
All 3 video girl stories have a chad best friend, and the MC in I"s also has 1 chad best friend.
It's like you don't see much of that in modern romance stories, usually it's just the MC and his harem.
The 90's was a different era that's for sure.