The things I don't really like about the Shidou-Tohka pairing:
- Shidou relied heavily on external aid to win Tohka's affection. In a way, the start of their relationship "was all but a lie". It is the AI+crew on Fraxinus that did most of the work.
- This is further carried on later novels: Tohka becomes unhappy = unstable mood whenever Shidou ignores her. Since having a backflow of spirit power is quite dangerous, I feel as if Shidou is being blackmailed into complying Tohka's wishes. Fortunately for Tohka, Shidou is a nice guy and rarely feels annoyed/frustrated by that. Imagine how Shidou will feel if he has his eyes on another girl and Tohka just refuse to let go! (This is also a reason why I want to see Shidou genuinely fall for someone else: Tohka must learn).
- Tohka has this extremely strong unquestionable love for Shidou original from their initial few meetings. I see her as a rather naive child-like girl who knows nothing relationship wise beside "I just want to be together with Shidou, else I will be unhappy". Her reason for loving Shidou, while is shared by other heroines, feels relatively weaker and more shallow.
- I also feel their relationship advance over time just because the two of them are always together.
Of all the heroines so far, I think Miku by far has the best "route": she started off with a very strong distaste in men and is 200% yuri. Through Shidou's (+Shiori's) interaction (and with Kurumi's help), he is able to open her heart and gave her a valid reason to fall in love of him, shown through both words and action.
Kurumi also does not disappoint, originally seeing Shidou as nothing but prey, Shidou's will to protect all spirits and to save her was able to reach into her dark heart.
Poor Origami (see previous post)
. Oh we have yet to have her appear on the cover. I can see her blackmailing Shidou if she ever gets turned into a spirit. "I will only let you kiss me if you sign this marriage registration and make out with me tonight".
Kotori is also a loser in the battle. Her live with her favorite onii-chan got disrupted by all the spirits. Her spirit's power has always been with Shidou and protected him from all sorts of dangers, and her command over Fraxinus is all for the sake of Shidou. Yet at the end she gets no credit for all the things she has done even though she is right beside him all along.