Anime Crossover: Climbing the Tech Tree and Traveling Across Worlds

Fang Ye landed in a crossover world through sheer dumb luck, but this world is far from peaceful. He'll have to rely on the System and fight to find his place in it. (Planned crossovers: Kaguya-sama: Love Is War, Kamen Rider and Armor Hero, Saekano: How to Raise a Boring Girlfriend, The Detective Is Already Dead, Lycoris Recoil, Honkai Impact 3rd, Honkai: Star Rail, Genshin Impact, The Invincible (Only the Door), assorted Chinese comics, Sword Art Online, Bofuri: I Don't Want to Get Hurt, so I'll Max Out My Defense, and others to be decided. The early chapters lean toward everyday life. Sorry for any OOC characterization. Square brackets indicate the System.) (I'm a new author, so please don't be too harsh if the writing isn't great. Thanks!)