Nyanko Big, Pillar of the Tada family since the loss of its mom and dad, is missing. Mitsuyoshi’s little sister Yui takes center stage in the search for him, riffing off of her favorite manga that chronicle the cases of Hercule Poirot’s half-Japanese granddaughter…which doesn’t sound like a half-bad anime!
Everyone joins in the search, even Sir Charles, who was the one who saw him last with his “girlfriend” (a raggedy foxtail toy). During the search, Yui is happy to be partnered with Yamashita Dog, on whom she’s been maintaining a crush. (Hinako and Hajime sit this one out).
When we first see Charles reacting to something earlier on, and Yui’s gramps mentions how pets “take a trip” when their “time has come”, the episode is trying to tint the proceedings with foreboding, but while the thought briefly occurred to me they might kill off the cat, that thought didn’t last due to the search’s lighthearted tone.
Sure enough, they find Nyanko attempting to woo the disinterested Cherry, who happens to be the pet of “Chia-nee”, a lovely woman who knows Yamashita and pats him on the head as he coos. The joy of finding her cat is replaced by the revelation the guy she likes likes someone else, and says as much later when they’re enjoying celebratory festival snacks.
Teresa knows something’s up, and when asked what’s up, Yui cannot hide her tears of frustration, asking Teresa if falling in love with someone is always so painful. Like Nyanko Big, Yui is meowing up the wrong awning, but Charles later confides in Nyanko that he senses he may be doing the same with Teresa.
That aside, Teresa is the one who once told him “if you give up, then that’s that!”, when he tried to give up looking for his cherished gold bracelet (perhaps given to him by Teresa). She didn’t give up, ended up finding it, and he still wears it to this day. He, in turn, won’t give up, and neither will Nyanko and Yui.
As for Mitsuyoshi? Well, once again he’s a non-factor, only managing a momentary awkward meeting of eyes with Teresa. You can’t give up something you haven’t started, and with only five episodes left, he’s running out of time to do so.