Komori was Honda's catcher since his earlier days as a little leaguer back when they were in Mifune Dolphins along with Sawamura and Shimizu.

He continued to catch for Goro when he returned from Fukuoka in Mifune Middle School but that ended when Mayumura eliminated them single-handedly in their game with Kaido Unified.

MAJOR 2nd Spoilers

In MAJOR 2nd it is shown that he is the manager of the Little League team, Nijigaoka Beetles.