It was another boring day at Kuromorimine after they allowed men to enroll as well. You just stared at your crush, Maho Nishizumi, while listening to the teacher yap.

"A phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating."

"The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C)." The teacher said, but you were already occupied with your crush, you wished to ask her out but you didn't have the confidence, and time was running out since it was almost valentines day.