Increasing Yelan's Friendship Level in Genshin Impact does not increase any of her combat skills in the game. However, they do unlock her stories, voiceovers and character name cards for those interested in lore. All these can be achieved by farming Companionship EXP in the game daily.
Although increasing the friendship level is not the game's main objective, veteran players always farm it as they have more free time after finishing their Resin.
Here are some methods through which players can farm for Yelan's Companionship EXP in Genshin Impact.
The most obvious method to increase Yelan's Friendship level is by completing Daily Commissions. Players can earn up to 60 EXP per commission and 100 EXP every day by talking to Katheryne, depending on their rank.
While fulfilling the commissions, remember to add Yelan to the team or she will not receive any Companionship EXP.
Genshin Impact players can also farm Yelan's Companionship EXP by spending Resin on any available Domain or Leyline. However, the amount of EXP given depends on their Adventure Rank.
Ley Line Outcrop (Blossoms of Wealth and Blossoms of Revelation) can only give out a maximum of 20 EXP. Meanwhile, normal and weekly bosses grant up to 45 and 70 EXP, respectively.
In the co-op mode of two players, the number of Companionship EXP earned by characters doubled. This is due to the fact that players can only have two characters in their party, and the reward is split between the two instead of the four.
However, players must note that a co-op of more than three people will not double the EXP.
When players keep Yelan in their Serenitea Pot as companions, they gain EXP based on their Adeptal Energy and Trust Rank. Every hour, a total of five Companionship EXP is distributed
Read more on sportskeeda.com