Neko-nin exHeart SPIN! 2

Shortly after the main protagonist, Makibishi Kikumaru, learned of his destiny following his grandfather's death and went through various events. To be specific, what happened was...
In this country, beings called ‘Subhumans’—those of different origins than humans—exist unseen. The Saika family, to which the protagonist belongs, has been the link between this ‘underworld’ and human society. The protagonist, who was actually the hidden child of the Saika head, Magōichi, found himself caught up in a succession dispute while the head was absent. Under the loving guidance of the cat ninja, Fujika, he somehow succeeded in awakening his bloodline. They defeated the longstanding thugs who attacked them, achieving a temporary peace. But as you can tell from the content, nothing was actually resolved.
With the strongest cat ninja, Fujika, and the former assassin, Chika, now allies, Kikumaru faces the question of whether to rebuild the Saika clan... when suddenly, what appears before him is... A tanuki, a fox, his real sister... And even the Fuma cat ninjas, who'd been up to all sorts of things under some distant sky in the past? And then some more... and so on, plunging headlong into chaos. The final chapter of the modern cat ninja action drama.
With no holds barred cuteness, we'll make you go “meow meow”.

Japanese Version