[2] Yorita considers Nanami to be a "stupid bottom" character.
[3] Michelle Smith, writing for PopCultureShock, found the first volume "utterly charming" - appreciating Shouzo not abusing the "imbalance of power" in his relationship with the "child-like" Nanami, and for encouraging Nanami to become more adult while still respecting his talents.
[4] Leroy Douresseaux, writing for Comic Book Bin, feels that Brilliant Blue is a "compelling drama" and "also an interesting workplace romance", because Shouzo and Nanami connect over workplace issues.
In an epilogue six months later, the couple are out, but Smith feels the prejudices against them were glossed over in the end.
[6] Leroy Douressaux, writing for Comic Book Bin, felt that the storytelling became "awkward" once Shouzo and Nanami began their romantic relationship, but when the author pulled away from the couple to show more of their surroundings, the storytelling became better.