Can I love you with all my might? Volume 1

Comic Synopsis

Chiyo Takamura, a construction worker, finds herself exhausted and thirsty.
Her boss is noisy, the boys under her charge are selfish, and she is no longer old enough to dream about men.
She was comfortable being alone and did not want to change anything. And yet...

"Will you let me love you with all my heart?"

Chika Seo, whom I thought was just an uncle who was my lunch friend, confessed her love to me.
Seo is kind, hot, and really male.
He is passionate, yet enveloping in his love, and I don't know what to do.
We are both adults, but how am I supposed to like him?
We feel each other's heat with our bodies, but it's painful and joyful like first love.
The world of a 30 year old girl and a 40 year old man starts to turn around with the new "falling in love".