If you were referring to a different series, here is the relevant content for their 8th episodes:
Are you interested in a into the psychological themes of the pet anime, or would you like a watch guide for another "Pet" titled series? Podcast Episode 8: Transcript - Pet Harmony
: Satoru begins asking critical questions about their situation, signaling a shift in the group dynamic and a "bleak" outlook for Hiroki's future within the organization. Other Shows with "Pet" in the Title
: The 8th episode provides backstory on the "ancestors" and reveals historical lore about previous heroes summoned to the world. Real-Life Pet Educational Content (Episode 8)
: Fans noted that Hiroki passes out from sheer exhaustion after attempting to "crush" or alter memories. The show emphasizes that these mental feats are physically taxing, leaving him and Tsukasa drenched in sweat.