Confirmation

Her action was so sudden that Fei Chuan was unable to react in time. He stood there, stiff and shocked by her actions.

This... this again!

Bei Sangyun closed her eyes as she savored the delightful combination of rich, chocolatey, and coffee-infused flavors bursting into her mouth. The long-awaited vivid flavors colored her dull world, awakening every sense within her.

Bei Sangyun indulged in the pleasure on her tongue before she opened her eyes. She licked her lips, expressing her desire to taste more.

"... It's mocha flavor," she muttered with happiness. Her eyes sparkled as she glanced back at Fei Chuan's dark expression.

"...This cupcake is something I randomly bought in the cafeteria... not a work of Grandma Pei's. Then the answer is clear." 

It must indeed have something to do with Fei Chuan. For some reason, her sense of taste awakened when he 'blessed' it.