Tonari no Hachuurui-kun is a Manga/Manhwa/Manhua in english language, ANIMALS series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Tatsumi lives a tired life because of his work at a sketchy company. His only reason for living and his passion is reptiles. Kotani lives next door to Tatsumi and unexpectedly one night after a misunderstanding ends up helping him create a channel to talk about reptiles.