Like, meaning preference.
According to relevant information from 18183 Mobile Game Network, the "XP party" in Genshin Impact means that regardless of the character's damage and attributes, if you look good-looking and inexplicably like it, you will ignore other characters and only prefer, The type of player who upgrades this character. The "X" in "XP Party" means "like" and "P" means preference.
"Genshin Impact" is an open world adventure game produced and published by Shanghai MiHoYo Network Technology Co., Ltd. The project was established at the end of January 2017, and the original test started on June 21, 2019.