Masami Iwasawa/Relationships

Yuzuru Otonashi
Unknown to Otonashi, Iwasawa had a completely different experience in the afterlife compared to most of the members in the battlefront. Instead of disappearing after singing, "My Song", he intervened and prevented her disappearance. While Otonashi doesn't recall such events, she still harbors feelings of extreme love to him and offered him her bike after eating out with the entire battlefront top brass. It is still unknown to all members of the battlefront that she had a completely different experience in the afterlife. After such discovery, her feelings are conflicted, often leading to bouts of frustration and anguish.

She refers to Otonashi by his first name.

In Chapter 6, she attempts to keep her cool while explaining her situation to Otonashi, only to run outside in the rain. She then kisses Otonashi after he hugs her from behind.

Yuri Nakamura
Given that Iwasawa leads the distraction group, Yuri holds high standards of both her and Girls Dead Monster when they are running Operation Tornado. As for relationships, Yuri holds a stable relationship with Iwasawa, often seeking her input whenever it mattered. While in the afterlife Yuri made explicit decisions in regards to songs, Yuri has given Iwasawa a bit more freedom to create to her heart's content. While not explicitly stated, Yuri sees her as a potential liability following the main events of Angel Beats, and therefore is trying to play her decisions around her carefully in order to keep her under close observation.

Sekine Shiori
Since Iwasawa doesn't have much to speak about other than her life and music, Sekine finds it difficult to start conversations with her that don't lie on the basis of music. Prior to the events of A Step Closer, Iwasawa herself began to talk about topics that didn't fall under music. As a result, the rest of Girls Dead Monster were shocked beyond comprehension. Sekine initially thought some type of anomaly was affecting Iwasawa's life. Enlisting Irie, she began her private investigation on Iwasawa and the underlying cause of this development.

Quickly, Sekine realized the anomaly itself in Chapter 5, when Iwasawa spoke up about wanting to hear Otonashi's story.

Miyuki Irie
Since Iwasawa doesn't have much to speak about other than her life and music, Irie finds it difficult to start conversations with her that don't lie on the basis of music. Prior to the events of A Step Closer, Iwasawa herself began to talk about topics that didn't fall under music. As a result, the rest of Girls Dead Monster were shocked beyond comprehension. Irie was then forcefully enlisted by Sekine to a private investigation on Iwasawa and to discover the underlying cause of this development.

Sekine and Irie then quickly realized the anomaly itself was not in fact a spur-of-the-moment development but was in fact a person.