Gahi-chan!

A manga artist in dire straits is thrilled to encounter a voluptuous girl who bears an uncanny resemblance to his creation's heroine, completely undressed and waiting at his doorstep. However, his delight is short-lived as the young lady is actually a gahi: a tentacled yokai with an appetite for artwork, capable of transforming the same into second skins that she dons regularly. With a pen being her favourite flavour, the entity nicknamed "Ruki" refuses to relent until she indulges her taste buds adequately. Is the visitor truly a good-for-nothing, or could an amorphous being serve as the ultimate muse?