This is a game of descent. Under the guidance of the Divine Guards, everyone who comes here is sent to another world to complete a corresponding task. One day, the protagonist wakes up and discovers that he has somehow become "415." A series of bizarre rules and bizarre descent points give him a headache, until someone appears...
"Sir, do you believe in love at first sight? I'm not a player, and I'm not an NPC. I'm just like you, completely real... I'm yours. I've never liked anyone before. I thought I could never like anyone... until I met you."
Theme: Love does not vanish with changes in time or space
