Jade (the creator of Rasing a Bat) has another work called The Lady and Her Butler. Unfortunately it's not BL, but it's still really good! The first few chapters are free on Lezhin!
https://www.lezhin.com/en/comic/ladyandbutler
(Note that chps will be randomly free, and as the series continues more will probably become free)
Tae Yang (Minji's boyfriend) shows up as a minor character, so I guess the two stories take place in the same universe.
The art style makes me think ecchi porn but this is actually so pure and just great. Makes me want to work out to get Yae-san's arm muscles and abs.
(๑•ㅂ•)و✧