Read manga: Wadanohara And The Great Blue Sea: Sea Of Death Arc

manga
Summary:

The Sea Kingdom was invaded by the Totsusa Kingdom, but Wadanohara and her familiars managed to hold them back. The two princesses faced off with one another -- and suddenly the two kingdoms were at peace.The war was seemingly over.... However, Wadanohara's original familiar, Samekichi, was thinking."Wadanohara.. I will definitely... protect you."What are his true intentions?  All will be revealed soon.