Scattering for the quadratic NLS system in $\mathbb{R}^{5}$ without mass resonance or radial symmetry

We consider the quadratic NLS system \begin{equation*} \begin{cases} i\partial_tu+Δu=v\bar{u},\newline i\partial_tv+κΔv=u^2, \end{cases} \qquad (t,x)\in\mathbb{R}\times\mathbb{R}^5, \end{equation*} where $κ>0$. If $κ=1/2$, which is called mass resonance condition, then scattering below the