53-sai de Hajimete Off-kai ni Sanka Shimashita

Let's go see our online-gaming friends in an IRL meetup! "MAKOTO" was a middle-aged man and newbie gamer who was excited to finally meet his online-gaming buddy "Ao-san", a veteran adventurer who had been helping him out. However, the one who showed up at the meeting spot was... an elementary school boy!? (Source: Kadokawa, translated) Note: Originally self-published on Pixiv and Twitter in 63 chapters, it was collected into 10 chapters for commercial release by Kadokawa on 2021-09-01 with two additional bonus chapters.