Useful Tags: lekismon_(digimon), lekismon, pink body, purple chest, purple back, tentacles on back, tentacle tail, multitail, silver chain, cresent moon on forehead, silver mask, wearing mask, pink eyes, fingerless gloves, single lock of hair, fingerless gloves, digimon (creature), 6 tails, pink ribbons, yellow details

If you want a maskless lekis then you just gotta put the silver mask & wearing mask tags in the negative prompt.