User blog comment:AquilaeAltair/OnS Theories. Third Theory (S2) - The real way the Seraph trait exists and its relation with Rigr Stafford/@comment-36009152-20190724013015

That was it, Chapter 6 when Yu makes his contract with Asuramaru comes the whole "fyi you are not fully human" XD also fascinating demons can sense that whether due to genetics… no, it’s because they truly know a humans heart and what makes them, better than people know themselves, supreme powers indeed! Also of note that both Yu and Asuramaru were aware of Yu’s non-human side before it was actively revealed, nice foreshadowing if anything.

Rigr’s plans have been long in the making and sharing his DNA to strategic individuals would be another strength kept in reserve for the right time, which is about now actually! Interesting if they are to come in the new novel they could have a timely coincide with near chapters in the manga.

Agree with Rigr learning something specific about Sika Madu, he isn’t all knowing like when he was unaware that Ashera had swallowed some of Yu’s blood so things can escape his gaze. But what if then, as you suggest if some things do XD probing Ferid or anyone with questions to see what they know is nice and devious of the first as well.

For Saito’s plans it’s going to be a huge shocker if he does catch the first, if Shikama Doji knows he is planned to be captured and has something in check for that very plan, either or any outcome. No matter the scenario, someone’s long calculated plans are likely going to be undone.

Just interesting to note that Saito did move to where the seraph in Mirai was so he has actually taken them into account. Just depends how realistic his plot is, and whether his seraph plans can be effective against the first… who may have prepared for them XD