I have some old ideas about Wakasa that I think haven't been denied yet :
Wakasa is like Curaçao ,,, Rum wanted to take advantage of Curaçao's unique skills and make her subordinate to him ,, Also Karasuma wanted Wakasa to work as his subordinate because he saw her strength , intelligence , strong hearing .... etc .
Curaçao betrayed the organization and ran away from them and knew the truth of Sherry ,,, also Wakasa betrayed the organization , ran away from them after Kohji case , and she knew the truth of Sherry , so Wakasa is a former member of the organization and was subordinated to Carasuma personally .
Wakasa belongs to Haibara's family through Atsushi , she may be his sister or (niece/daughter of his Brother) .
Wakasa is Asaka the bodyguard, and she may have killed Amanda while Rum killed Kohji ,,,, i think Wakasa was a bad person and a criminal while she was in BO , but Kohji case has made her change like Curaçao did when she met the Detective Boys .
Wakasa is supergirl , who lacks flying and taking fire out of her eyes .
The poison that Elena made disappears after killing the victim , This poison killed Kohji , Wakasa's love . While Haibara's poison makes the victim disappear , but the effect of the poison suddenly stopped in Conan and Haibara's body .
- How did Wakasa get the APTX list ? I have 2 possibilities :
1- May have she got it from Haibara because the list is very recent and contains the name Shinchi .... Honestly, I don’t know what surprised Wakasa in file 1070 !! . Is she surprised that Haibara didn't tell her the truth that she is Shiho herself, or was she surprised by something new that she knew after hearing Conan’s words with Haibara , but it seems that Haibara knows identity of Wakasa very well , while Wakasa may not know some facts about the child Haibara . I think there was a conversation between Wakasa and Haibara after the golf player case when Wakasa drove the detective boys to home .
2- or Rumi may still be in communication with a BO member and got the list from him .
- Why did BO not move against Wakasa after she appeared in the newspapers ?
1- she ran away 17 years ago , and we do not know who the members of the organization were at that time .
2- Wakasa may have faked her death, so they did not expect that she is still alive after all that time of disappearance and she will join an elementary school . Also her face may have changed completely after all this time . The organization hasn't moved against Conan, Haibara or Akai because they believe they are dead .
3- BO may have already moved against Wakasa to make sure whether she is Asaka or not , but Gosho will not show this scene to us because we would know that Wakasa is not Rum or a BO member ,,, so the organization may have broken into Wakasa apartment in her absence and searched for The shogi piece in that apartment because it will be actual proof that Rumi and Asaka are the same person ,,, I think Wakasa hid the piece in her back pocket because no one would expect to hide it in her pocket instead of putting it in a safe place like her flat ..... In the 20th movie , Conan and Haibara identify Curaçao's corpse through the little toy she had.