I’m Confused Is this an actual series ?

Go watch on youtube !!! Vivinos!!!!!!!!!!! Preach!!! You won't regret it!! But you will go insane

Nope it's like an additional scenes for the main story. You need to watch the YouTube mvs first (it's like, mv that delivers story within it)
https://youtube.com/playlist?list=PLQ-JZOYFII4dHqeSu6yeGj-30sZohX_oX&si=cQIB5R8QQzl6SOik

Watch from the bottom (round 1) lol