Chaos Rings
From MangaAlpers: This manga is based on the role-playing game of mobile phones. Two Sons, Kiriru and Ignat, are born from combat life. His mother hopes that they do not have to fight alone. In adolescence, Kiriru does not like his designated fate, but he must fight with monsters, otherwise many other people will die. Will he accept his fate and will it ever find a partner? [TETHYSDUST]