While much lighter on fan-service than most romance/harem anime, you will get maybe two scenes of girls in a bathtub, but you don't see any actual nudity.

There is a brief shot of a naked man from behind in an art class.

More than once, we see girls in a bra/bikini.

The main character shares a kiss with one girl.

A young man asks a minor to buy him a porn magazine as a prank.

A boy is said to have once had a crush on his older sister.

A young man walks in on a teenage/preteen girl bathing. Both are completely nude, but we don't see any sensitive areas. The young man jokingly offers to join her. The scene isn't so much sexual as it is awkward.

Violence/blood is rare and infrequent.

A young woman attempts to beat up a young man but fails due to lack of strength. The scene is played comedically.

Mild comedic violence and slapstick now and then.

A girl slits her wrists (offscreen).

One character gets hit by a car. No blood, but we see the impact.

A female character fights invisible demons with a sword. The fights are not violent per se, since we usually can't even see the demons.

A girl is severely bruised.

Not frequent or strong. Words used include "da**", freakin', "basta***", "g**dammit"," hell", etc.

One use of "oh shit" in the subtitled version.

One use of "two shits" in the dubbed version.

A man whispers "bitch" in the dubbed version (barely audible).

The series is full of intense emotional scenes that may upset children. Heavy themes about death, disease, and other such subjects are dealt with.

The show is actually pretty mild for a TV-14 title. With the exception of maybe a couple of episodes, a "TV-PG" certificate might be more appropriate.