I met my beloved former student again. I couldn't hold myself back...

Due to her shy personality, Rena has been living a lonely life that is far from the university she dreamed of with friends when she was a high school girl, and her heart is so exhausted that it's difficult to continue her university life, so now that she is still in the spring break of her second year, she is heading home to think about what will happen next. Just as he runs away on his way to his parents' house, he meets his high school teacher and former teacher Mizuno.