I'm looking for this manga - it was either new updated or its a new one because I found it...

I'm looking for this manga - it was either new updated or its a new one because I found it on the main page of mangago: its about a guy in class and his friend says you're so popular and the other one says that must be your imagination. but in his toughts he thinks "of course I'm popular! Since kindergarten girls liked me.....etc. I just read the first pages and it went missing on my phone. please help me thanks :)