The episode explores Mamoru's character traits, specifically his pride , which is noted as a significant personal weakness.
If you are looking for a place to watch or find more specific details, you can find episode listings on platforms like Apple TV and Amazon Prime Video , where the series is often titled Web Ghosts Pi Po Pa . Net Ghost Pipopa Episode 18
Earlier in the series, it is established that Yuta and Mamoru were close friends who celebrated birthdays together. The episode explores Mamoru's character traits