I'm glad you liked it :D Thanks for playing and commenting :3
Sadly, it would be too difficult to give different stories because this game is a localised fandub of a Japanese audio drama CD. In the original, there is only Atsushi & Kakeru as characters because the CD series was aimed at a female listener audience, but since I was turning it into a VN, I just wanted to try and be more inclusive by adding pronoun options + giving the player the choice of interacting with guys or girls.
In the other volumes, each volume has a brand new pair of characters with a completely different story. So if I ever manage to release the remaining volumes, there will be different pairs of characters to choose from with different stories :3