Title: Little sister treatment

Seashore Aster: Convolvulus, you like spaghetti with meat and sauce, right? I can understand that.
Convolvulus: Thank you.
Seashore Aster: You've got some meat sauce on your mouth. Let me wipe it for you.
Convolvulus: Eh...? I can do that myself...
Seashore Aster: Convolvulus is like a little sister for me, so leave it to me ♪
Convolvulus: Sure... Thank you.
Seashore Aster: Ah! <notices the stain>
Seashore Aster: You've got some sauce on your clothes too... I'll do the laundry, so raise your arms for me.
Convolvulus: Aren't you treating me more like a baby than a younger sister!?