呆到深处自然萌宅到深处自然呆
[dāi dào shēn chŭ zì rán méng zhái dào shēn chŭ zì rán dāi]
This phrase combines two ideas: 'Being introverted deeply enough brings out your cuteness; Being shut-in profoundly leads to natural reclusiveness.' It conveys that embracing one’s quirks (such as being antisocial) naturally leads to endearing characteristics. The word for cuteness (萌 - moe) comes from internet culture, particularly from anime fandoms.