A/n: Happy birthday Mewtwo!!

In the a Abandoned destroyed warehouse, the Ukrainians are hunkered down as artillery fire are being heard, they're waiting until they move out again. Mewtwo meanwhile is reading a book of learning of the Ukrainian language, when Y/n comes over with a cupcake and a lit candle.

"Hey Mewtwo check this out, it's your lucky day today!"

Sits by him,

"I managed to get this razz berry cupcake, and so I thought I'd give this to you."

Mewtwo looks at it curiously as he levitates it by his hand,

"You never tried sweets before?"

"I haven't..."

He looks at it as he noticed the candle,

"What's this?"

"Oh when ever people celebrates birthdays, they put candles so when you blow them you make a wish."

"A wish..?"

"Any wish you can think of....but you have to keep it a secret.."

"Hm..."

He gently blows out the candle,

"Did you wish for something?"

"I did...."

"That's good....go on dig in..."

Sniffs it a bit and bites it,

*munch*

His eyes close in delight,

"Hmm...it's nice..."

"I thought you like it..."

"So what did you do..?"

"Uh...What..?"

"Don't think you can butter me up, I know your tricks and I'm not falling for it!"

"Hey I didn't do anything I swear!"

Then around them, the team emerged and started singing,

"Happy birthday to you....happy birthday you....happy birthday dear Mewtwo.....happy birthday to you....!!!"

They all clapped and cheered as Mewtwo looks at them bewildered and looks at Y/n,

"You....planned this....for me...?"

"Like I said, no tricks this time.....at least this year..."

Then mew behind them blows a party horn,

*Fweeeeeeeeeeeeee!!!!*

Ding!