MIGHT CONTAINS MINOR SPOILERS
--------------------------------------------------------------
❦ List of POSSESSIVE SEMES ❦
http://www.mangago.me/home/mangalist/418506/
--------------------------------------------------------------
--------------------------------------------------------------
❦ Light Novels with POSSESSIVE GUYS ❦
https://www.novelupdates.com/viewlist/248/
--------------------------------------------------------------
.so from what I understand. The girl probably ended up killing the one who was "god" in that world, because fuck that douchebag. While the MC basically returned to modern day Japan while retaining his powers from the dungeon. The MC decides to become the Punisher and go around killing mafia and gang bangers with his powers because "fuck peaceful retirement...it's kill or be killed". As for the phone bro, he is still in contact with the MC after all this time and is still being a bro.