Genshin Impact: Teyvat's Strongest Wage Earner

Aika was an ordinary office worker. He got so excited while wishing for a character that he was struck by lightning and transmigrated to Teyvat. From the start, he became Jean’s younger brother and bonded with the Strongest Wage Earner System. He traveled alongside Aether and became the “Strongest Wage Earner.” (I recommend starting from the part where he reaches Liyue. The earlier chapters were written when I wasn’t thinking straight, and they’re so embarrassing.)