Sumireko reminds me of vegeta (saiyan pride). Given her physical condition she has an immense desire to become strong. After suffering her last defeat, she knows she still has a ways to go. Altho she takes the charm from mahiru, she will return it in the future. Until then she actually looks forward to 'training' with shinya at full strength as she tries to retrieve the charm.

Fortunately they both care about each other and shinya doesn't want to actually kill her. I doubt sumireko plans on dying and she is pretty durable so she should be fine. Hopefully they continue to grow closer each day. Glad Mahiru seems to be enjoying her maid life. It's interesting how sumireko said that when she does return the charm it will be a relic. I guess that implies its going to be a long time before that happens.

Also kumahiru is too cute! I wonder how long she kept those ears...