40 Made ni Shitai 10 no Koto

"I'd be down to sleep with you." These past 10 years I haven't dated anyone and given up on love. Now it's three months until my 40th birthday. Have a takoyaki party, eat a parfait, spend my birthday with a lover. The handsome member of my team who's 10 years younger than me just had to find my secret list and now we're going to check it off together? Making the list changed my life?! A love story between a handsome subordinate x his older superior.