Subarashiki Hibi ~Furenzoku Sonzai~ (translated to Wonderful Everyday-Discontinuous Existence-) is a 2010 VN by KeroQ (translated in 2017 by Frontwing) that was mostly written by SCA-Ji. The game is famous in the visual novel community, ranking #25 on VNDB at the time I write this. However, the game is infamous for its extremely messed up 18+ scenes. This is a big turn off for many people. However, if you can get through this, it is an extremely beautiful experience. SCA-Ji is extremely talented and is very educated about what he writes. Much of this is Wittgenstein philosophy. You are not required to read his stuff beforehand, SCA-Ji explains it very well, but it may enrich the experience. I do suggest you read Alice's Adventures in Wonderland+Through the Looking-Glass and watch Cyrano de Bergerac beforehand, but again it is not required. One last side note is that Subahibi started off as a remake of one of SCA-Jis older works Tsui No Sora. 10 years after Suabhibi, Tsui No Sora got a proper remake. If you speak Japanese or are willing to use machine translation, I suggest you read that after Subahibi. SCA-Ji also has other highly acclaimed works you can check, bounded by language like Tsui no Sora.

WARNING: DO NOT PLAY THIS GAME IF YOU CAN NOT STAND: assault, rape, weird fetishes, suicide, homophobia, or drug abuse.