Adonis

Adonis is quiet, timid and obedient. He does not share his father's aggressive temperament and struggles under the severe standards Julius imposes upon him.

He continues practicing despite being treated harshly during sword training. His caretaker recognizes that Adonis misses his mother and needs affection, while Julius insists that severity is necessary to prepare his son for adulthood.

Adonis's vulnerability makes the contrast between him and the politically ambitious adults surrounding him particularly pronounced. He is being prepared for a future others have designed without any indication that he personally desires it.

Adonis receives formal sword training from Julius, who intends him to become a capable noble warrior and eventually inherit command of the White Dragon Knights.

At thirteen, however, he remains a novice. His training scene emphasizes the difference between his father's expectations and his current ability, with Julius easily overpowering and chastising him.

Adonis has no supernatural abilities and no established battlefield experience.

Adonis appears when Guts infiltrates Julius's residence on Griffith's orders. Before carrying out his mission, Guts watches Julius training the boy and is reminded of his own painful childhood with Gambino.

Julius intends Adonis to succeed him as commander of the White Dragon Knights. He even imagines a political future in which his son might marry Charlotte and ultimately rule Midland.

After assassinating Julius, Guts hears someone entering and instinctively strikes before identifying the newcomer. The person is Adonis, whom Guts accidentally impales. The boy dies holding Guts's hand, leaving Guts horrified by what he has done.

Julius is Adonis's father and trainer. He places enormous expectations upon his son and subjects him to severe sword training intended to prepare him for command.

Charlotte is Adonis's cousin. Julius imagines that Adonis might eventually marry her and inherit Midland's throne.

Midland no Ou is Adonis's paternal uncle and the reigning king.

Guts sees Adonis training with Julius, which reminds him of Gambino. Guts later kills Adonis accidentally while escaping from Julius's assassination.

Gambino has no direct relationship with Adonis, but watching Julius's harsh treatment of his son causes Guts to remember his own upbringing.