D.I.L.D.O: Droid for Immersive Libido Dynamics Optimization

For Seo Jae-Yun, a seemingly innocent game of Secret Santa is about to change his life. After unwrapping his special gift, he is shocked to find a dildo - and one that can come to life, at that! The dildo will do anything to please his master, and try as he might, Jae-Yun can’t find it in himself to kick his newfound companion out. Instead, perhaps they can work together find the greatest gift of all...deep, deep inside.

(Source: Lezhin US)

Note: Includes four extra chapters.