Well, I'm not a native English speaker and I'm sorry about my awful English, poor story organization and stupid vocab usage
-1- ''Wounded Goddess''
'Urgh!!' Lightning wailed, lying on the plage of Valhalla bleeding.
'Huh, time to end this, knight of the goddess!' Caius said.
With the gigantic blade in his hands readied to stab Lightning in her chest, she felt desperate and sorry for Serah.
'S..sorry Serah....You have to...live on...' Lightning whispered.
'You're still alive, Claire, right?'
'Lightning!!' A resonant voice appeared.
'What? Another one?' Caius became impatient.
'Eat this, Caius Ballad!' The mysterious man hurled and kicked Caius from above.
That's a direct hit. Caius became unconscious and fell onto the ground.
The man with natural, shoulder-length light sapphire blue hair, blood-red eyes was another knight. He wears a golden armor just like Lightning's valkyrie armor, the only difference was that the armor covered the whole of his body. Being mighty and bestowed power upon by Etro, he's even greater than Lightning in terms of combat effectiveness and stamina. The dual blade set he wields was also bestowed by Etro, which was able to appear at the wielder's will and vanish after battle.
'Who...are you, stranger?' Lightning asked softly.
'Well, you know me actually. Just call me Rain.' He replied. 'You're badly wounded, Farron...I'm gonna carry you to the cure fountain'
Immediately, he supported Lightning with his thewy hands and walked to the fountain near Etro's throne.
-2- ''Old partner''
'Drink this, it cures.' Rain gave Lightning a grail.
He wiped the blood which covered Lightning's face gently, afraid of hurting her again.
'It's been a long time, Claire...'
Trying to hold Lightning up, Rain circled his left hand around Lightning's neck and hold her shoulder tight. He glanced at Lightning's face, then looked around.
After a while...(You know the time flow of Valhalla wasn't natural)
Lightning woke and saw Rain holding her.
'Who are you!' She shoved Rain onto the ground and pointed her gunblade at him.
'I'm...Rain, Rain Canon' He answered, lowering his head.
'Canon...Why are you here?' Lightning lowered her weapon, confused and surprised.
'It's been 6 years since you left college... I'm sorry for your family, Claire...' Rain said.
'Actually, I'm here to tell you something.' Rain said with anxiety. 'Caius had gone to the real world after you defeated him. Noel Kreiss killed Caius in Valhalla and unleashed the enormous chaos which later on combined Gran Pulse and Valhalla and formed Novus Partus. You turned crystal after the fight with Caius and woke up on Novus after a few centuries. Despite the extraordinary time flow in Valhalla, I can command time of both the real world and the unseen realm because Valfodr gave me the power. I'm your guardian now. You will be the liberator of soul and savior of humanity in Novus Partus, there's only thirteen days left.'
'What about you?' Lightning asked.
'Protect you. Hope Estheim will be contacting you via comms and I'll be helping him. That's it. Finish your mission, Farron.' Rain answered with confidence.
There's more coming!