(1) He really is just fourteen years old.

(1b) On the school records, anyway.

(2) There are things he cares about other than tennis, such as healing his shoulder so he can play tennis and long runs on the beach (a fitness method suggested by Inui to build endurance for tennis matches) and deodorant.

(2b) Speaking of deodorant, there was an incident near the end of his second year in the locker rooms after tennis practice when - Actually, on second thought, it's probably better for everyone if we don't go there.

(2c) The incident, of course, involved Fuji.

(2d) And Inui, who'd wanted to diversify from juice to other products.

(2e) Ooishi was rather appalled.

(2f) Ryuuzaki-sensei had to pretend not to be amused.

(2g) It was the first time that Tezuka ordered anyone to run a hundred laps.

(2h) And he wasn't even the team captain.

(2i) The actual team captain, quite wisely, decided that he could remind Tezuka of that later.

(3) Tezuka has no desire to be a doctor or a businessman or a lawyer or a general or a band member or a writer or a tennis player or an obsidian stone when he grows up.

(3b) According to school records, the only occupations he's considering are accountant and actuary and acupuncturist.

(3c) In the interests of full disclosure: the reason he selected accountant and actuary and acupuncturist was because they required him to indicate at least three professions, and he didn't feel like wasting time reading past the first three.

(4) He's straight.

(4b) No really.

(4c) Really.

(4d) There's proof!

(4e) It was taken at the beginning of their third year on a perfectly blue and clear spring day, on the banks of the pond behind the school, and involved - Actually, it's best not to get into that, either.

(4f) It was rather coincidental, though, how the photography club happened across the spot at the exact moment.

(4g) This time when Tezuka ordered the laps he was fully qualified to do so.

(5) The reason Tezuka considers questions of possible professions a waste of time is because he doesn't think beyond the present and immediate future.

(5b) He believes it's most productive to focus on the things he can change and ignore the things he can't.

(5c) Fuji is one of the latter.