***This is a very cute 3-volume BL series (2020-2022) by Okaka-sensei <3.
RAWS: https://comic.pixiv.net/works/6676?srsltid=AfmBOopdNR5J5PTe9Cdx4wuJZXwYQ8Zo3PmbJaPoC7GPH93jvpTYFj2G

Vol 1 - Summary:
When the egocentric actor Kodama Fuma was struggling to prepare for his role in a new drama, he met the popular prince-like idol Kanade.
He impulsively asked Kanade to become his boyfriend in order to learn the sweet and sparkling mannerisms of his character, and interestingly Kanade agreed to date Fuma...
"Does he really like me!?"
Fuma, who has no dating experience, is constantly at the mercy of Kanade's overly sweet behavior as a boyfriend!
A secret real-life romance between a doting idol and a young actor confused by his first love!