In 'angel rin okumura fanfic', a significant theme is power. Rin's angelic powers are often explored, how he gains more control over them, or how they evolve. Family also comes up as a theme. His relationship with his family, especially his angelic heritage, is a big part of many stories. Moreover, the theme of redemption can be found. As an angel, Rin may try to redeem some of the wrongdoings associated with his demon side in some fanfics.
One common theme is isolation. Often, when Rin is hurt, he may isolate himself from his friends and allies, thinking he's a burden or that he needs to deal with his pain alone.
Many fanfics also focus on her powers and how she learns to control and use them. It's about her journey of becoming stronger both physically and mentally.
One common theme is the struggle between Rin's demon nature and his human emotions in love. His demonic side might make him fear for the safety of his love interest. For example, in many fics, he's worried that his powers could accidentally harm the person he loves.
One common theme could be the exploration of Rin's unique identity in a yaoi context. His tail might be used as a symbol of his otherness or something that makes him stand out in the relationship. For example, it could be a source of fascination or a connection between him and his partner.
One possible theme could be self - discovery. If the tail has some special meaning or ability, Rin might go through a journey of understanding himself better. Another theme could be acceptance, both from himself and from others around him regarding this unique tail aspect.
Another great one is 'Cute Moments with Rin Okumura'. This fanfic is a collection of short stories about Rin. It includes things like his attempts to cook for his friends at the True Cross Academy and the resulting chaos that is still somehow really cute.
Fanfiction.net is also a good place. Just search for 'Rin Okumura' and then filter through the results to find the ones that seem to have a 'cute' theme. There are often reviews that can help you determine if it's the kind of cute story you're looking for.
One great 'rin okumura hurt fanfiction' is 'Bleeding Heart' which shows Rin going through emotional turmoil after a fight with his friends. It really delves deep into his pain and how he tries to overcome it.