Mega Succubus/Lust Friend

Mega Succubus (メガサキュバス Mega sakyubasu) is an enemy and potential friend in Lust Friend.

Profile
''An overwhelmingly large succubus, bigger than any of the town's buildings. It might be cheating, but she has the biggest breasts of all succubi. She is calm, but also sadistic to those she catches in her chest and underwear.''

Strategy
Mega Succubus skips her turn often, but when she does act, she has an instant-kill skill: Full-Body Titjob Hold. You must befriend or defeat her before she uses this skill.

To befriend Mega Succubus, use Pillow Talk followed by "Be pampered twice", then Pillow Talk followed by "Say you like her" twice.

If you instead wish to defeat her, note that Mega Succubus is extremely powerful. She has more Vigor than any other enemy in the game, even the bosses, and can instantly kill you. You will need to have very powerful attacks to defeat her before she does the same to you.

Sidequest
Mega Succubus is involved in a sidequest in Fess Town. There is a NPC stuck in the river here who wants to be saved. Talk to her and call over Mega Succubus (she must be befriended first) to save her.

Additional Scenes
Mega Succubus has an additional H-scene in which she stuffs Reto into her bra. To obtain this scene, you need to have obtained the True End and be under the Breast Addict status, then go up the stairs in Fess Tower that lead from the first to the second floor.