Ootaruika's son

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Ootaruika's son
Japanese Name	息子 (むすこ)
Species	Squid
Family	Ootaruika (father)
Affiliates	Ootaruika
Homeland	Possibly Ootaruika's House in the cave in Courage Wars Fii!
Location/Residence	Unknown
First Appearance	Densetsu no Starfy (Yumiko Sudō)
Latest Appearance	Densetsu no Starfy (Yumiko Sudō)

Ootaruika's son is one of the sons of Ootaruika, who only appears in the fourth chapter of the second volume of the Densetsu no Starfy manga illustrated by Yumiko Sudō — Courage Wars Fii!. He is a squid who looks similar to Ootaruika and wears a bow tie. Though he does not appear in person, there is a picture of him on the wall in Ootaruika's House. As Ootaruika talks to the picture and cries in front of it, it is likely that he is either deceased or missing.

In the events of Courage Wars Fii!, Ootaruika was angry with Starfy and Moe for putting themselves in dangerous situations in a cave, where there was a 'danger' signboard saying that access was prohibited. Initially, Starfy and Moe wanted to find a good place to go fishing, but when Moe was frightened by a vicious spiky fish he caught, it turned into a game of Starfy and Moe trying to prove who was 'braver'.

After Ootaruika saved Starfy and Moe's lives for a second time, they waited outside Ootaruika's House and listened in to what he was saying as he went in. He told his son that he met two 'idiots', who Ootaruika calls 'reckless', just like his son. It appears that Starfy felt sad for Ootaruika and left him a seashell that Starfy caught earlier. When Starfy and Moe exit the cave, Starfy tells Moe he dropped it but Moe gets angry and starts chasing him.