In a lot of isekai manga, the main character comes across someone or something (e.g. a slime monster) that has no name, and must give a name to him/her/it. Every time, the one who is given a name accepts it, is happy, etc.
- In Tensei Shitara Slime Datta Ken, Rimuru names all his villagers
- In Tondemo Skill de Isekai Hourou Meshi, ch. 10, the main character has to give a name to a newly tamed slime
- In The New Gate, Shin (ch. 10) and Schnee (ch. 26) give names to newly tamed beasts
Since isekai manga kind of aim to make true all the dreams/fantasies of the reader (e.g. the main character is super strong and has successful romance), why is there such a focus on giving names?