help with the name plss

okay so there was this manga where the mc and the ml had been playing a game 2gether for like 4 years or something i dont remember but they used to share their problems with each other ofc while not knowing each other personally, ig their names were hippo and abcd and the hippo guy liked abcd and they met in real life and then they fall in love but hippo dosen't know the mc is abcd and when he finds out he thinks the ml was just trying to make him look like a fool. i really can't remember the name i really liked it.
plss help ┗( T﹏T )┛