Her Deadly, Seductive Tenderness, and You Call Her a Little Sister

Extreme Flirting / Sweet Seduction [One Female Lead] [Redemption] [Healing] [Sweet Everyday Romance] [Couple Goals]

(The title and blurb don't do it justice. Please head to the story itself →)

Shen Yi has a gentle, sweet neighbor who is like a younger sister to him.

He's her tutor.

When doing exercises, she tends to zone out, so he reminds her: "When you're studying, focus."

In everyday life, he looks after her in every way. In the end, he even gets himself tangled up in it.

His friend teases him: "With a sweet, gentle girl like her, how can you not love her?"

Shen Yi shoots him a look: "She's still young..."

After something happens to her parents, Lin Wanwan's neighborly big brother steps up and takes responsibility for looking after her.

She originally thought that responsibility would last only until she finished the college entrance exams.

It isn't until she goes to university that she discovers her phone's lock screen has become a photo of him.

Her roommate leans in and warns her: "A crush always turns into a story about three people in the end. Be careful someone else doesn't set their sights on your wonderful big brother."

Lin Wanwan's gaze darkens a little.

When they meet again, she rises onto her tiptoes and kisses him of her own accord.

He is startled for a moment.

She parts her red lips: "When you're kissing, focus."

Shen Yi: "..."

Why does that sound so familiar?